1200-2000 Series Fire Panels, Repeaters, and Emulators
Interconnection and Wiring Guide
24
Figure 21: LON port PCB connections
1.
LON2000
2.
Service switch
3.
LON device
4.
LON device
5.
Data + (D+)
6.
Data - (D-)
7.
Termination
Jumper in terminated (T) position: serial communication port is terminated into 120
Ω
Jumper removed: serial communication port is not terminated.
If a LON2000 interface board is used in the first or last panel of a LON network, the jumper has to be
set to (T) (terminated).